TheRobotStudio
Cannot insert my servo motor to the base printed in Bambu Lab P1S
@philfung , I've already printed the parts using the file Print_Leader_Bambu_P1P.3mf with Bambu Lab P1S. However, I cannot insert the servo motor to the base. It's just around 0.5 mm too tight.
I tested the gauge zero from stl_files_for_3dprinting/Gauges/Gauge_0.STL and it fits well.
The printer setting is as recommended in the README:
- Material: PLA
- Nozzle Diameter and Precision: 0.4mm nozzle diameter at 0.2mm layer height.
What did I do wrong and which setting should I check in my printer?
Thanks!
@ywiyogo hm, thanks for the report. I've used this file to print 8 different arms, and the servo fits correctly when i use it (though I sometimes have to push it in with a lot of force). Does the servo not fit at all, even with force? If it doesn't fit at all, then I can try to print again and check.
Hi @philfung , yes even with a huge force, it got stuck and leaves about 0.5 cm space to the end. Then, I need to use a tool and huge force to pull my servo motor from the base. I thought your file will be fit for P1S too. I'll do some experiment to find out the cause of this issue. I tried to mount the second part without the motor and it doesn't fit too.
I'm sorry for this. Ill try to print out a part in the next few days and see what's wrong
I think, I see the issue. The servo motor has 24.72 mm witdh and 35 mm height on the back, like the following dimension from the specification:
My measurement in the base model shows 24.70 mm for the width and 32.90 mm height. The different in height is 2 mm and 0.02 mm in the width.
In another parts I see smaller dimension than the real dimension of the servo motor.
I check the diff in the history, and it shows that all the measurements in the base model are from the beginning the same. Thus, I wonder how many people don't have the issue during the assembly of this robot.
Hi @ywiyogo , I just did a fresh print using the checked in pmf file on a Bambu P1P with PLA. It fits fine with both a Waveshare 3215 (the servo you're using) and the Feetech 3215 (the recommended servo). In addition I've known several others who've printed out using this file.
Hi!
I’m having the same issues as @ywiyogo . I had some trouble fitting the base with the motor 1 blocker (Base_08q-5.STL). The most difficult part for me was the Wrist_Roll_Pitch_08i-1.STL. I'm using a Creality K1C printer with PLA.
I managed to assemble the parts by sanding down the small corners where they were rubbing, but the fit is still very tight and requires a lot of force. Is there a specific reason why the fit is so tight (the sides seem slightly smaller than the servo)?
Do you have additional settings on your printer?
@jbcayrou hm, the pmf has all the settings (at least form Bambu P1P).
@jbcayrou @ywiyogo One "hacky" solution is to edit the file slightly in a CAD program to make the opening bigger for your printers (For your convenience, here is a CAD file with the base, wrist and feetech servo which you can edit).
@jbcayrou thanks for sharing. As, I've been pointed out above that the opening in the model doesn't fit to the dimension of the servo motor. The 2 screenshots above is from BambuStudio and in FreeCAD is the same. @philfung yes, I'm working to modify the opening for the servo motor in FreeCAD. Thanks for the CAD file.
@philfung @ywiyogo Before editing the CAD file, you may want to try changing the XY hole/contour compensation settings in Bambu Studio.
I'm having the same issue with a P1S printer and the 101 arm. Not only the servos, but other parts seem to be way too tight. Testing with the Gauge Zero also fails.
Testing with the Gauge Zero also fails.
Does "Gauge Zero also fails" mean "the gauge doesn't fit the motor" or fails as in "the gauge does fit the motor, but the final part doesn't?"